---
id: CVE-2026-100694
title: Hugo is a static site generator
summary: >-
  Hugo is a static site generator. In versions from v0.56.0 through v0.165.x,
  content files mapped to the text/org media type are rendered without escaping
  raw HTML: Org export blocks and @@html:...@@ snippets pass HTML through
  unescaped, …
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: gohugoio
product: hugo
affected:
  - hugo >= 0.56.0 < 0.166.0
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T14:16:54.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100694'
references:
  - url: 'https://github.com/gohugoio/hugo/security/advisories/GHSA-pq74-mj4h-cjq2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/hugo-before-0.166.0-cross-site-scripting-via-text-org
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T13:33:20.903Z'
---

## Overview

Hugo is a static site generator. In versions from v0.56.0 through v0.165.x, content files mapped to the text/org media type are rendered without escaping raw HTML: Org export blocks and @@html:...@@ snippets pass HTML through unescaped, resulting in cross-site scripting (XSS) in the generated site. An attacker who can supply or influence a content file under /content or the output of a content adapter can inject scripts that execute in the browsers of visitors to the affected pages. Only pages whose source file or content-adapter output declares the text/org media type are affected, and sites that fully trust all content sources are not impacted. Version v0.166.0 fixes the issue by introducing a security.allowContent allowlist that denies text/org by default; sites that intentionally author Org Mode content can opt back in with [security] allowContent = ['.*'].

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.